package com.xigege.bio;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class BIOServer {
    public static void main(String[] args) throws IOException {
        //线程池机制

        //思路
        //1. 先创建一个线程池
        //2. 如果有客户端连接，创建一个线程，与之通讯（单独写一个方法）

        ExecutorService newCachedThreadPool = Executors.newCachedThreadPool();

        //创建一个serverSocket
        ServerSocket serverSocket = new ServerSocket(6666);
        System.out.println("服务器启动");

        while (true) {
            //监听 等待客户端连接
            final Socket socket = serverSocket.accept();
            System.out.println("连接到一个客户端");

            //创建一个线程，与之通讯（单独写一个方法）
            newCachedThreadPool.execute(new Runnable() {
                public void run() {
                    //可以和客户端通讯
                    handler(socket);
                }
            });

        }
    }

    //编写一个handler方法和客户端通讯
    public static void handler(Socket socket) {
        //通过socket 获取输入流
        try {
            //输出线程id，name
            System.out.println("线程信息 id = " + Thread.currentThread().getId() + "\n" + "线程名字 name" + Thread.currentThread().getName() );

            byte[] bytes = new byte[1024];
            InputStream inputStream = socket.getInputStream();

            //循环读取客户端发送的数据
            while (true) {
                //输出线程id，name
                System.out.println("线程信息 id = " + Thread.currentThread().getId() + "\n" + "线程名字 name" + Thread.currentThread().getName() );

                int read = inputStream.read(bytes);

                if (read != -1) {
                    //输出客户端发送的数据
                    System.out.println(new String(bytes, 0, read));
                } else {
                    break;
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            System.out.println("关闭和client的连接");
            try {
                socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }
}
